Evaporative Emissions (Evap) Control System Monitor And Readiness Code; Air Fuel Ratio (A/F) Sensor Monitor And Readiness Code; Air/Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code - Honda EP3 Service Manual

Evaporative Emissions (EVAP) Control
System Monitor and Readiness code
NOTE:
All readiness code are cleared when the batterV is
disconnected or when the ECM is cleared with the
OBD ll scan tool or Honda PGM Tester.
The enable criteria must be repeated if the intake air
temperature (lAT) drops lower than 36'F (20"C) from
i t s v a l u e a t e n g i n e $ a n u p .
Enable Criteria
At engine start up, ECT and IAT are higher than 32'F
(0"C) , but lower than 95'F (35"C).
At engine start up, the ECT and IAT are within 12'F
(7'C) of each other.
Procedure
1. Connect the scan tool to the vehicle's data link
connector (DLC), and bring up the tool's generic
O B D l l m o d e .
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
with short periods of steady cruise. After about
2 . 5 m i l e s ( 1 . 6 k m ) , t h e r e a d i n e s s c o d e s h o u l d
switch f rom incomplete to complete.
4. lf the readinesscode isstill setto incomplete, check
for a temporary DTC. lf there is no DTC, one or
more of the enable criteria were probably not met;
repeat the procedure.
Air Fuel Ratio (A/Fl Sensor Monitor and
Readiness Code
NOTE:
. Do not turn the ignition switch off during the
orocedure.
. All readiness codes are cleared when the baftery is
disconnected or when the ECM is cleared with the
OBD ll scan tool or Honda PGM Tester.
Enable Criteria
ECT at 140'F (60"C) or higher.
Procedure
1. Connect the scan toolto the vehicle's data link
connector (DLC), and bring up the tool's generic
O B D l l m o d e .
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
with short periods of steady cruise. During the
drive, decelerate (wirh the throttle fully closed) for
5 seconds. After about 3.5 miles (2.2 km). the
readiness code should switch from incomDlete to
complete.
4 . l f t h e r e a d i n e s s c o d e i s s t i l l s e t t o i n c o m p l e t e , c h e c k
for a temporary DTC. lfthere is no DTC, the enable
criteria was probably not meU repeat the procedure.
Air/Fuel Ratio (A/Fl Sensor Heater Monitor
Readiness Code
NOTE; All readiness codes are cleared when the battery
is disconnected or when the ECM is cleared with the
OBD ll scan tool or Honda PGM Tester,
Procedure
'1.
Connect the scan tool to the vehicle's data link
connector {DLC), and bring up the tool's generic
O B D l l m o d e .
2. Start the engine, and let it idle for 1 minute. The
readiness code should switch from incomplete to
c o m D l e t e .
3. lf the readiness code is still set to incomplete, check
for a temporary DTC. lf there is no DTC, repeat the
proceoure.
(cont'd)
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